Labels:text | screenshot | font OCR: CERATOPSIAN Describes a member of a group of plant-eating dinosaurs, many of which had horns and a bony neck frill. The group's name means "horned-faced" dinosaurs. Ceratopsians belonged to the marginocephalians ("margined heads"), a group of ornithischian ( "bird-hipped") dinosaurs with a ridge or shelf at the back of the skull.